3. In the terms of environmental protection, the cement rotary kilns are always utilized by the developed countries to dispose hazardous wastes and rubbish.

4. In the process of mineral separation,rotary kiln can be utilized to roaste and burn the iron ore so as to make the ore change from weak magnetic into strong magnetic so that it is simple to separate magnetic.

5. In the building materials industry, except from burning cement materials, the rotary kiln also can burning clay,lime and dry slag.In the process of producing fireproof, the rotary kiln will be always utilized to burn the raw materials so as to make their size stable and strengthen their strength.

6. In the utilization range of rotary kiln, the cement industry is the most important.The whole technique of producing cement is called'two grinding and one burning'. And 'one burning' means that the process of burning the prepared materials under the high temperature in the rotary kiln. So rotary kiln is the main machine in the process of producing cement and it are also called' the heart of cement factory'.

rotary kiln

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